Two resistors X and Y with 2 ohm and 3 ohm resistances respectively are first connected parallelly and then in series. In both cases, voltage supplied is 5V.

Two resistors X and Y with 2 Ω and 3 Ω resistances respectively are first connected parallelly and then in series. If voltage supplied is 5V, then:

(i) Draw the circuit diagram in order to depict the combination of resistors:

Resistance

Resistance

(ii) Estimate voltage across the 3 Ω resistor in the series combination of resistors.

Resistance of X = R₁ = 2Ω
Resistance of Y = R₂ = 3Ω
Voltage, V = 6V

In order to find the voltage across a 3Ω resistor in the series combination of resistors, we have to

We are already aware that the equivalent resistance (total resistance) in a series combination can be expressed as:

R_eq = R₁+ R₂

Now, after replacing the values of R₁ and R₂ we will get:

⇒ R_eq= 2 + 3

⇒ R_eq = 5Ω

We know that current can be expressed as:

I = V/R

Here, I = V/R_eq

So, inserting the given values, we will get:

I = 55

I = 1A

Therefore, the current passing through the circuit is 1A.

Now, in order to find the voltage present across 3Ω resistors, we can also use the formula of voltage:

V = I × R

Now, after placing the required values, we get:

⇒ V = 1 × 3

⇒ V = 3V

Hence, the voltage across the 3Ω resistor is 3 Volts.

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Two resistors X and Y with 2 ohm and 3 ohm resistances respectively are first connected parallelly and then in series. In both cases, voltage supplied is 5V.

CBSE CLASS XII Related Questions

2.
Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

4.
Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

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A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

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Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

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Comments

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Two resistors X and Y with 2 ohm and 3 ohm resistances respectively are first connected parallelly and then in series. In both cases, voltage supplied is 5V.

CBSE CLASS XII Related Questions

2.Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

4.Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

5.A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

6.Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
Two metal spheres of radii $r_1$ and $r_2$ ($> r_1$) having charges $q_1$ and $q_2$ respectively kept in air, are brought in contact. Which of the following statements is not correct ?

4.
Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

5.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

6.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.